Tankersley to have surgery

The Marlins' 2004 first-round pick, who was demoted to Triple-A on March 23, has been diagnosed with a stress fracture in his left (throwing) elbow. As soon as Friday, Tankersley will undergo surgery in Fort Worth, Texas, with former Rangers team physician John Conway.

"There is going to be a procedure of some kind," said Jim Fleming, the Marlins' vice president of scouting and player development. "The stress fracture he had last year did not heal."

At least two surgical options were being considered, but the most likely treatment will involve the insertion of two small surgical screws to stabilize the elbow. Fleming said the procedure should not be season ending, but there is no timetable for when Tankersley, 26, will resume throwing.

At least one doctor recommended surgery for Tankersley after last season, when he posted an 8.15 ERA in 25 outings for the Marlins. Tankersley, who last week went to Birmingham, Ala., to see Dr. James Andrews, tried to pitch through the pain last season and this spring but eventually realized surgery was the only cure.

Proud to wear 42

For the first time, all uniformed personnel in the majors today will wear No. 42 to honor Jackie Robinson. Few are prouder to do so than center fielder Cameron Maybin.

Maybin's father, Rudy, made sure his son grew up with an awareness of what Robinson and other African-American players endured after breaking the color barrier.

"Pretty much at a young age I started to learn about what those guys had to do to get where they were," Maybin said. "It helps me appreciate where I am a lot more."

After the Detroit Tigers drafted Maybin and gave him a $2.65 million signing bonus, he made a contribution to the Jackie Robinson Foundation.

Lineup tweak

First baseman Jorge Cantu said he still feels a pinch in his bruised left hand at the end of his swing, but that's not entirely the reason he wasn't in Tuesday's lineup. Manager Fredi Gonzalez said left-handed hitting Ross Gload would have gotten the start regardless.

Gload entered the game hitting .435 (10 for 23) against Javier Vazquez.

Gonzalez also gave Alfredo Amezaga his first start, in right field. ...

To accommodate a Dolphins-Colts Monday night game at Dolphin Stadium, the Marlins are moving their Sept. 21 game against the Phillies to July 16. Tickets issued for Sept. 21 will be honored July 16.